WISE J0457−0207

This is a list of brown dwarfs. These are objects that have masses between heavy gas giants and low-mass stars.^[1] The first isolated brown dwarf discovered was Teide 1 in 1995.^[2] The first brown dwarf discovered orbiting a star was Gliese 229 B, also discovered in 1995.^[3] The first brown dwarf found to have a planet was 2M1207, discovered in 2004.^[4] As of 2015^[update], more than 2,800 brown dwarfs have been identified.^[5] An isolated object with less than about 13 Jupiter masses is technically a sub-brown dwarf or rogue planet.

Because the mass of a brown dwarf is between that of a planet and that of a star, they have also been called planetars or hyperjovians. Various catalog designations have been used to name brown dwarfs. Brown dwarfs with names ending in a letter such as B, C, or D are in orbit around a primary star; those with names ending in a lower-case letter such as b, c, or d, may be exoplanets (see Exoplanet naming convention).

Some exoplanets, especially those detected by radial velocity, can turn out to be brown dwarfs if their mass is higher than originally thought: most have only known minimum masses because the inclination of their orbit is not known. Examples include HD 114762 b (>11.68 M_J), Pi Mensae b (>10.312 M_J), and NGC 2423-3 b (>10.6 M_J).

Confirmed brown dwarfs orbiting primary stars

Sorted by increasing right ascension of the parent star. Brown dwarfs within a system sorted by increasing orbital period.

Some brown dwarfs listed could still be massive planets.

Zdroj:https://en.wikipedia.org?pojem=WISE_J0457−0207
Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia.

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Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok.
Podrobnejšie informácie nájdete na stránke Podmienky použitia.

Star	Constellation	Right ascension	Declination	App. mag.	Distance (ly)	Spectral type	Brown dwarf	Mass (M_J)	Radius (R_J)	Orbital period (d)	Semimajor axis (AU)	Ecc.	Discovery year
54 Piscium	Pisces	00^h 39^m 22^s	+21° 15′ 02″	5.88	36.1	K0V+T7.5	B	53	0.7987		476		2006
81 Cancri	Cancer	9 ^h 12 ^m 14.69^s	14° 59 ′ 39.6″	6.77	66	L8	CD				880		2001
AB Pictoris	Pictor	06^h 19^s	−58° 03′ 15″	9.16	66.6	K2V	b	13.5			275		2005
CD−33°7795	Hydra	11^h 31^m 55^s	–34° 36′ 17″	11.37	163.08	M1	b	20			100		1998
CT Chamaeleontis	Chamaeleon	11^h 04^m 09^s	–76° 27′ 19″	12.36	538	K7	b	17	2.2		440		2008
Eta Coronae Borealis	Corona Borealis	15^h 23^m 22.6^s	30° 14′ 56″	5.02	58.3	L8	C	63			3600		2010
G 196-3	Ursa Major	10^h 04^m 22^s	+50° 23′ 23″	11.77	50.2	M2.5	b	25			300		1998
GD 165	Boötes	14^h 24^m 39.144^s	9° 17′ 13.98″	14.6	103	D4A+L4	B						1988
Gliese 570	Libra	14^h 57^m 28^s	−21° 24′ 56″	5.64	19.0	K4V+ M1V+M3V	D	52			1500		2000
GU Piscium	Pisces	01^h 12^m 35.04^s	+17° 03′ 55.7″	13.1	155.3	M3V	b	11			2000		2006
HD 89744	Ursa Major	10^h 22^m 10.56^s	+41° 13′ 46.31″	5.74	126.2	F7IV	B						2000
HD 100546	Musca	11^h 33^m 25^s	–70° 11′ 41″	6.70	337.25	B9Vne	b	20			6.5?		2005
HN Pegasi	Pegasus	21^h 44^m 28.46^s	+14° 46′ 7.8″		58.3	T2.5	B	28	1.01		795		2006
LHS 4040 [es]	Sculptor	23^h 54^m 9.28^s	－33° 16 ′ 26.6″	20.7		M8.5V	C				2200		2004
UScoCTIO 108	Scorpius	16^h 05^m 54^s	–18° 18′ 43″		473	M7	b	14			670		2007
WD 0137-349	Sculptor	01^h 39^m 43^s	−34° 42′ 39″	15.33	330	DA	B	53		0.0803	0.0030	0	2006
HD 41004 B	Pictor	05^h 59^m 50^s	–48° 14′ 23″	12.33	139	M2	b	18.4		1.3283	0.0177	0.081	2004
CoRoT-15	Monoceros	06^h 28^m 27.81^s	+6° 11′ 10.5″	22		F7V	b	63.4	1.12	3.06036	0.045	0	2010
Xi Ursae Majoris B	Ursa Major	11^h 18^m 12^s	+31° 32′ 15″	4.73	25.11	F8.5V	b	37		3.98	0.06	0	1931
Upsilon Andromedae	Andromeda	01^h 36^m 48^s	+41° 24′ 20″	4.63	43.9	F8V	Samh	13.98		237.7	0.822	0.224	1999
Gliese 758	Lyra	19^h 23^m 34^s	+33° 13′ 19″	6.36	51.9	G8V	B	23		96	21		2009
HD 112758	Virgo	12^h 59^m 03^s	–09° 50′ 03″	7.56	53.81	K0V	b	35		103.22	0.35	0.16	1996
BD−04°782	Eridanus	04^h 15^m 10^s	–04° 25′ 06″	9.39	66.6	K5V	b	21		240.92	0.7	0.28	1996
HD 110833	Canes Venatici	12^h 44^m 16^s	+51° 45′ 40″	7.04	55.44	K3V	b	17		270.04	0.8	0.69	1996
HD 89707	Hydra	10^h 20^m 50^s	–15° 28′ 48″	7.19	81.54	G1V	b	54		298.25		0.95	1991
Tau Geminorum	Gemini	07^h 11^m 08^s	+30° 14′ 43″	4.40	302	K2III	b	18.1		305			2004
HAT-P-13	Ursa Major	08^h 39^m 32^s	+47° 21′ 07″	10.62	698	G4	c	15.2		428.5	1.186	0.691	2009
HD 217580	Aquarius	23^h 01^m 52^s	–03° 50′ 55″	7.46	58.7	K4V	b	60		454.66	1	0.52	1994
HD 16760	Perseus	02^h 42^m 21^s	+38° 37′ 07″	8.74	163	G5V	b	14.3		465.1	1.13	0.067	2009
HD 13189	Triangulum	02^h 09^m 40^s	+32° 18′ 59″	7.57	603.4	K2II	b	14		471.6	1.85	0.28	2005
HD 18445	Fornax	02^h 57^m 13^s	–24° 58′ 30″	7.78	83.92	K2V	b	39		554.67	0.9	0.54	1991
HD 8673	Andromeda	01^h 26^m 09^s	+34° 34′ 47″	6.31	124.75	F7V	b	14		639	1.58		2005
NGC 4349-127	Crux	12^h 24^m 08^s	−61° 52′ 18″	7.4	7097	MIII?	b	19.8		677.8	2.38	0.19	2007
Gliese 569	Boötes	14^h 54^m 29^s	+16° 06′ 04″	10.2	31.5	M3V	Ba + Bb	116^[6]		870^[6]	0.87^[6]	0.317^[6]	1988^[7]
HD 29587	Perseus	04^h 41^m 34^s	+42° 07′ 25″	7.29	146.77	G2V	b	40		1471.7	2.5	0.37	1996
ChaHα8	Chamaeleon	11^h 07^m 48^s	−77° 40′ 08″	20.1	522	M6.5	b	18		1590.9	1	0.49	2007
CoRoT-20	Monoceros	06^h 30^m 55.3^s	+0° 13′ 37″	14.66	4000	G2V	c	17		1675	2.9	0.6	2010
HD 168443	Serpens	18^h 20^m 04^s	–09° 35′ 34″	6.92	123.5	G5	c	34		1739.5	2.87	0.228	2001
HD 38529 A	Orion	05^h 46^m 34^s	+01° 10′ 05″	5.94	138	G4IV	c	37		2174.3	3.68	0.36	2002
Epsilon Indi	Indus	22^h 03^m 22^s	–56° 47′ 09″	4.69	11.8	K5V	Bb	28		5478.75	2.65		2003
HW Virginis	Virgo	12^h 44^m 20^s	−08° 40′ 17″	10.9	590	sdB+M	b	19.23		5786	5.30	0.46	2008
DT Virginis	Virgo	13^h 0^m 41.74^s	12° 21 ′ 14.7″	9.72	37.55	P	c	12.5	1.1	33081			2010
HD 4113	Sculptor	00^h 43^m 12.60^s	−37° 58′ 57.48″	7.88	136	G5V	C	60		73000	20		2006
Gliese 229	Lepus	06^h 10^m 35^s	–21° 51′ 42″	8.14	19	M1V	B	40		73050	40		1995
TYC 9486-927-1	Octans	21^h 26^m 50.4^s	－81° 40′ 29.3″	11.82	111	L3γ	2MASS J2126-8140	13.3 (± 1.7) `M`_J		328725000	6900		2009
Epsilon Indi	Indus	22^h 03^m 22^s	–56° 47′ 09″	4.69	11.8	K5V	Ba	47		1532899.8			2003
HD 131664	Apus	15^h 00^m 06^s	−73° 32′ 07″	8.13	180.8	G3V	b	18.15		1951	3.17

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